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Coal Mining MCQs Questions & Answers | Mining Engineering

Learn and practice multiple-choice questions (MCQs) with answers related to Coal Mining. These resources are available for mining engineering students who wish to clear GATE exams, technical interviews, competitive examinations, and other entrance exams. The Coal Mining chapter is particularly important for students studying mining engineering. Page-6 section-2

Each section contains 100 MCQs on Coal Mining .
51
Vertical shaft does not extend upto the surface called
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Answer & Solution
Answer: Option A
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52
The hydraulic sand stowing the goaf is adopted and the face is along the strike it should be slightly oriented at to provide drainage of water.
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Answer & Solution
Answer: Option D
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53
During extraction of coal the minimum thickness of rib left against the goaf is
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Answer & Solution
Answer: Option D
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54
The value of threshold convergence in longwall mining is mm/m.
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Answer: Option B
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55
With a good sand stone roof the area explored may not be more than . . . . . . . . m2 at one stook extraction.
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Answer & Solution
Answer: Option D
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56
Mud bucket not necessary when supply of flushing water
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Answer: Option C
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57
First indication of roof weighting for regular fracturing roof in goaf.
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Answer: Option B
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58
The size of bricks generally construction of brick well are
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Answer: Option C
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59
Velocity of slurvy instowing has to be kep at a minimum of . . . . . . . .
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Answer: Option B
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60
For rotory drilling the drill rods are . . . . . . . . section
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Answer & Solution
Answer: Option C
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